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ASTM A572 Steel vs. AISI 409Cb Stainless Steel

Both ASTM A572 steel and AISI 409Cb stainless steel are iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ASTM A572 steel and the bottom bar is AISI 409Cb stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 18 to 25
24
Fatigue Strength, MPa 240 to 340
140
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 300 to 380
270
Tensile Strength: Ultimate (UTS), MPa 470 to 620
420
Tensile Strength: Yield (Proof), MPa 330 to 510
200

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 400
710
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 51
25
Thermal Expansion, µm/m-K 13
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0
8.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
2.2
Embodied Energy, MJ/kg 22
31
Embodied Water, L/kg 47
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
83
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 690
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 17 to 22
15
Strength to Weight: Bending, points 17 to 21
16
Thermal Diffusivity, mm2/s 14
6.7
Thermal Shock Resistance, points 14 to 18
15